Vulnerability Description
Discourse is an open-source discussion platform. From versions 2026.1.0-latest to before 2026.1.3, 2026.2.0-latest to before 2026.2.2, and 2026.3.0-latest to before 2026.3.0, the enter action in StaticController reads the sso_destination_url cookie and redirects to it with allow_other_host: true without validating the destination URL. While this cookie is normally set during legitimate DiscourseConnect Provider flows with cryptographically validated SSO payloads, cookies are client-controlled and can be set by attackers. This issue has been patched in versions 2026.1.3, 2026.2.2, and 2026.3.0.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Discourse | Discourse | >= 2026.1.0, < 2026.1.3 |
Related Weaknesses (CWE)
References
- https://github.com/discourse/discourse/commit/080408b93d00305b51d71f63f755f43fa6Patch
- https://github.com/discourse/discourse/security/advisories/GHSA-378j-ccw4-4fwhMitigationVendor Advisory
- https://meta.discourse.org/t/using-discourse-as-a-sso-provider/32974Product
- https://meta.discourse.org/t/use-discourse-as-an-identity-provider-sso-discourseProduct
FAQ
What is CVE-2026-32113?
CVE-2026-32113 is a vulnerability with a CVSS score of 6.1 (MEDIUM). Discourse is an open-source discussion platform. From versions 2026.1.0-latest to before 2026.1.3, 2026.2.0-latest to before 2026.2.2, and 2026.3.0-latest to before 2026.3.0, the enter action in Stati...
How severe is CVE-2026-32113?
CVE-2026-32113 has been rated MEDIUM with a CVSS base score of 6.1/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-32113?
Check the references section above for vendor advisories and patch information. Affected products include: Discourse Discourse.